My time, energy, and inner peace is more valuable than the loss I've incurred ($300) and the mental anguish of waiting for hours to get a customer support person to issue me a refund (someone who has probably been instructed to resist giving me back my money)
Vowing to never use their business again (so my loss is limited to a one-time event) and recommending everyone to do the same has worked out pretty well for me --- I can make peace with the experience and we slowly weed out these bad apples from the world